Quick answers
- Does Rassa Shahidzadeh accept Medicare assignment?
- Yes. Medicare's clinician data says Rassa Shahidzadeh accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Rassa Shahidzadeh see?
- In 2024, CMS data shows 440 Original Medicare patients and 1,241 services for Rassa Shahidzadeh. This counts Original Medicare only and measures volume, not quality.
- What is Rassa Shahidzadeh's NPI number?
- 1366563959. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Rassa Shahidzadeh, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 440 |
|---|---|
| Services billed to Medicare | 1,241 |
| Different services or procedures | 46 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Removal of polyps or growths of large bowel using an endoscope with mechanical snare (45385)161 services
- Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)144 services
- Biopsy of large bowel using a flexible endoscope (45380)124 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)55 services
- Colorectal cancer screening; colonoscopy on individual at high risk (G0105)51 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High blood pressure75%
- High cholesterol75%
- Arthritis50%
- Ischemic heart disease38%
- Diabetes31%
- Depression24%
Hospitals where Rassa Shahidzadeh works
Medicare's Facility Affiliation Data lists Rassa Shahidzadeh at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Baylor Regional Medical Center at PlanoPlano, TX · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 450890
- Baylor Scott & White the Heart Hospital PlanoPlano, TX · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 670025
Practice locations
Addresses where Rassa Shahidzadeh is enrolled with Medicare (CMS data updated October 2, 2026).
- 4001 Worth StDallas, TX 75246
- 4700 Alliance BlvdPlano, TX 75093
- 4708 Alliance Blvd, Suite 550Plano, TX 75093 (469) 800‑6140
- 821 N Coleman St, Suite 100Prosper, TX 75078 (469) 800‑5200
Group practices
Medicare enrollment lists Rassa Shahidzadeh as a member of this group (CMS data updated October 2, 2026).
- Healthtexas Provider Network2,697 clinicians in the group
Specialties
- Gastroenterologyprimary
Other gastroenterologists in Dallas
Clinicians with the same Medicare primary specialty in Dallas, TX — not a recommendation.
Other clinicians in Healthtexas Provider Network
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Baylor College Of Medicine |
| Graduation year | 2001 (25 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1366563959 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians